Gasoline burner



Feb. 23, 1932. .1. SLADKY ET AL GASOLINE BURNER Original Filed Nov. 8, 1928 away/9 zzjj izr A. 525/551: 5

Patented Feb. 23, 1932 UNITED STATES PATENT OFFICE] JOSEPH SLADKY AN D ALEXANDER G. SLADKY, OF MILWAUKEE, WISCONSIN, ASSIGNORS TO NATIONAL ENAMELINCT & STAMPING (30., INC., OF MILWAUKEE, WISCONSIN GASOLINE BURNER Original application filed. November 8, 1928, Serial No. 318,074. Divided and this application filed April 17,

1930. Serial No. 445,018.

generator tube to initially gasify the fuel,

whereby the raw gasoline will not flow into the burner proper. It frequently happens,

through various causes, that the gasoline or fluid fuel passes through a burner before the generator tube has been suificiently heated, the result of which causes flooding, with its dangerous and serious consequences. 20'

With this in view, the main object of the invention is to provide a temperature actuated, automatic valve control, which primarily is effected by utilizing an expanding and contracting action of the generator tube per se, in conjunction with means positioned outside of the heating area of the burner for eflecting relative movement between the valve and valve casing, upon expansion of the generator tube, or contraction of the same.

Various types of gasoline stoves have been manufactured and distributed embodying burners wherein thermostatic control has been utilized in conjunction with the fuel feed valve supply, and it hasbeen found that where the means for actuating the automatic valve is within the field of the burner or heat therefrom, that this heating more or less aifects both the valve actuating means and the generator tube to nullify to a certain extent the action of the valve, due to the fact that both the generator tube and its valve means will have more or less movement, due to expansion and contraction.

Hence, our present invention is designed to control the automatic valve by a more or less direct connection of one valve element through the tube, while the other valve element is connected beyond the influence of heat, whereby said last mentioned valve element will be held substantially fixed with re lation to the movable element carried by the aforesaid generator tube.

With the above and other objects in view, the invention consists in certain peculiarities of construction and combination of parts, as will be more fully set forth hereinafter, and subsequently claimed. 7

The drawing shows a diagrammatic view with parts broken away and in SGCillOIl to illustrate one mechanism for carrying out the invention.

Referring by character to the drawing, 15 indicates a burner of standard type, provided with a mixing tube 16, having an air intake 17, the mixing tube, as shown, being bowed upwardly in one direction,while there is provided an extension neck 22, which is bowed upwardly from the burner proper in the opposite direction, both the neck and tube being positioned at a distance from the face'of the centrally disposed burner, whereby these parts will be only slightly, if any, influenced by heat therefrom.

The bowed end of the mixing tube is apertured for the reception of one end of a generator tube 18, which end is slidably mounted in said aperture. The opposite end of the generator tube 18 carries a manually controlled valve 19 having the usual hand wheel 20, the said valve 19 being provided with a depending car 21, which is rigidly secured to the burner nose extension 22.

A priming cup 23 is positioned below the generator tube and is supplied by fuel from a pipe 24;. The upturned end of the mixing tube 16 carries a valve casing 25 of cylindrical type,'which casing, at its outer cylindrical end, is closed by a plug 26. The opposite end of the valve casing is formed with a central valve port, which valve port is controlled by a valve stem'28, the end 37 of which extends through the port and abuts a diaphragm 31, which closes a chamber at this pointof the valve casing, it being noted that the diaphragm is secured in place by a nut ring 32.

The rear portion of the valve stem is of less diameter than the valve casing cylinder, and it terminates with a piston head 27 between which head and the rear plug 26, there is a coil spring interposed, whereby said valve stem is normally held to its associated valve seat.

Fuel is supplied to the cylindrical valve shell by a pipe 30 which communicates with said cylinder between the head 27 of the valve stem and the discharge port thereof. When the valve stem 28 is moved from its seat, fuel from the pipe or tube 30 will travel through the discharge port and into the chamber formed by the valve casing and diaphragm. From this chamber, it will be delivered to the manually controlled valve 19, through a pipe connection 38, as shown.

The generator tube at its movable end has extending therefrom an arm 35, which arm carries a tappet pin 36 that is adapted to engage the valve diaphagm 31, whereby said diaphragm is flexed inwardly, and thus indirectly the tappet 36 engages the reduced end 37 of the valve stem and displaces said valve from its seat.

From the foregoing description, it is obvi ous that in operation, fuel is supplied to the priming cup, and when ignited it will initially heat the generator tube, the same being thus expanded, and its end, in sliding union with the burner mixing tube, will slide towards said tube, causing the tappet 36 to un seat the automatic valve unit 29, permitting flow of the fuel to the generator tube where it is vaporized and delivered to the burner. Thus, the burner will thereafter maintain the generator tube at high temperature to hold the automatic valve fully open until such time as it is cooled, due to the cut-off of the fuel supply.

It will be noted that the maximum automatic movement of the valve is effected, owing to the fact that the apparatus depends solely upon the thermostatic qualifications of the generator tube, and the remaining elements pertaining to the burner being remotely positioned from said tube, the valve casing will be practically held in a fixed position.

It follows that the automatic valve is closed promptly upon reduction in temperature of the generator tube to a predetermined point, Hence, no fuel can flow to the burner, unless the generator tube is at a predetermined temperature.

This invention, therefore, fulfills the function of automatically protecting the burner against flooding, either from premature supply of fuel or from the extinguishing of the flame from any cause whatsoever.

It will be seen further that the invention is relatively simple, although it performs the functions enumerated above, and it will be noted further that the apparatus functions without any thought or effort on the part of the operator.

We claim:

1. An apparatus of the character described, comprising a burner including a mixing pipe extending upwardly therefrom in goose-neck formation at one side of the burner, and a neck extending upwardly from the burner at its opposite end, a manually controlled valve secured to said neck, a generator pipe carried by said valve having its opposite end in yieldable communication with the burner mixing tube, a cylindrical valve cas ing extending upwardly therefrom, said valve casing having a fuel inlet and discharge port, a diaphragm chamber in communication with the discharge port, fuel means communicating with the diaphragm chamber to the manually controlled valve, a valve plug mounted in the casing, spring means for holding the valve plug in closed position with relation to the fuel discharge port, and tappet means extending from the juxtaposed end of the generator tube for engagement with the diaphragm chamber elements, whereby the valve plug is moved from its seat when the generator tube is expanded through the influence of heat.

2. An apparatus of the character described comprising a generator pipe, a burner positioned under said generator pipe and having communication therewith, a fuel controlling valve for said generator pipe comprising a valve casing and a valve operable therein, and means positioned outside of the heating area of the burner for connecting the valve member to the generator pipe, the valve casing being rigidly connected to the burner.

3. An apparatus of the character described comprising a generator pipe, a burner positioned under said generator pipe and having communication therewith, a fuel controlling valve for said generator pipe comprising a valve casing rigidly connected with said burner and a valve operable in said casing, a rod positioned outside of the heating area of the burner and connected with said valve, and means for connecting said rod with said generator pipe.

In testimony that we claim the foregoing we have hereunto set our hands at Milwaukee, in the county of Milwaukee and State of Visconsin.

JOSEPH SLADKY. ALEXANDER C. SLADKY. 

